What tool does ICE use to track non-compliance of immigration laws?

The Immigration Violator System (IVS) is specifically designed to track non-compliance with immigration laws. This system enables the Enforcement and Removal Operations (ERO) component of ICE to monitor and manage cases involving individuals who have violated immigration regulations. By focusing on non-compliant individuals, IVS supports enforcement actions and helps streamline the process of addressing violations, thereby enhancing overall immigration law enforcement.

The other options do not accurately reflect the tool used by ICE for this particular purpose. For example, while the Immigration Tracking System (ITS) could imply a method of managing various immigration-related data, it doesn't specifically pertain to tracking violators. Similarly, the Immigration Enforcement Database (IED) suggests a comprehensive collection of immigration-related information, but not necessarily focused on non-compliance. The Non-compliance Assessment Tool (NAT) sounds relevant, yet it does not exist as a recognized tool by ICE for tracking immigration law violations. Thus, the IVS stands out as the correct answer due to its dedicated function in monitoring non-compliance within immigration laws.